Don't know. I haven't seen Gator in ages. I used to see it on PC's at work but not it is mostly Cool Web Search that is haunting us. That one almost takes a nuke to get rid of.
I had one that I could not remove (and nothing would detect).
However it could not hijack Netscape nor Firefox so I used those browsers until my harddrive died.
Unfortunately there are websites that DO NOT work with Netscape and even more that don't work with Firefox.
So much for industry standards.